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(No Model.) 3 Sheets-Sheet 1.

P. HEIL'MANN-DUGOMMUN Machinery for Combing Fibrous Substances.

No. 240,394. Patented April 19,1881.

npzmzs, FNATO-LITVNOGRAFHER, WASHINGTON. D. O.

(No Model.) 3 Sheets-Sheet 2.

P. HEILMANN-DUCOMMUN. Machinery'for Gombing Fibrous Substances.

Patented April 19,1881.

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N. PETERS. PHOTQLITHOGRAPNEH, WASHINGTON. a c.

3 t e e h I S S P% w n m a S t 3 NM US MS u 0m. Cb Ul n Dg Nn b m M0 L0 r E w Y Pr. e n 1 h M 0 M a 0 M M o No. 240,394. Patented April 19,1881.

UNITED STATES PATENT OFFICE.

PAUL HEILMANN-DUCOMMUN, OF MULHOUSE, ALSACE, GERMANY, ASSIGNOR TO HEILMANN-DUOOMMUN & STEINLEN, OF SAME PLACE.

MACHINE RY FOR COMBING FlBROUS-SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 240,394, dated April 19, 1881.

ZApplication filed June 5, 1880. (No model.) Patented in Germany August 26,1879; and September 14, 1879.

To all whom it may concern:

Be it known that I, PAUL HEILMANN-DU- COMMUN, a citizen of Switzerland, residing at Mulhouse, Alsace, Germany, have invented 5 new and useful Improvements in Machinery for Oombing Fibrous Substances, of which the following is a specification.

Myinvention relates to certain improvements in machinery for combing fibrous substances,

for which Letters Patent No. 224,428 were granted to Paul Heilmann-Ducommun and Charles Vincent Steinlen, on the 10th February, 1880; also to improvements in the ma-' chinery described in my application for Let- 1 ters Patent filed on the 18th March, 1880.

In order that my invention may be fully understood, 1 will proceed to describe it with reference to the accompanying drawings, in which Figure 1 is a longitudinal vertical sectiouof part of my machine, showing the nippers and the parts which operate the drawing-nippers, and one way of applying the cap, said cap being in its depressed position. Fig. 2 is a simiz 5 lar yiew of the drawing-nipper, showing the retracted position of the cap. Fig. 3 is a similar view, showing the knife-blade for severing long fibers. Fig. 4 is a perspective view of the knife-frame and operating-cam detached.

0 Figs. 5, 6, and 7 are views, partly in side view and partly in longitudinal vertical section, of the drawing-nippers, showing the strippingblade in three different stages of the operation.

A represents one of the posts or arms which make up the oscillating frame which supports the operating machinery of the drawing-nippers. B is its supporting-arbor. G G are the jaws of the drawing-nipper, and D D the drawing-rollers. E E are the two jaws of the stationary nipper. All these parts are the same as described in the Letters Patent and application referred to.

For convenience in description, the rear end 5 of the web, which projects from the drawingnipper, will be termed the tail, and the other end, which projects from the feeding-nipper, the head, of the web.

It was found that when the machine was operating upon long and electrifiable fibers,

as the tail and head ends of the fibers approached each other they would collide, points against points, in such a manner as to injure the alignment of the fibers and also to make a more or less imperfect juncture.

G represents a cap, which I now employ to obviate this difficulty. This cap is attached to a lever, F, pivoted to each of the arms of the drawing-nipper atf. The other ends of these levers are provided with slots f, for the reception of the pins h, which project from the upper arms of thelevers H. The lower arms of said levers H bear against and are operated by cams I. A spring, J, attached to an arm, j, projecting from the axis of the levers H,

serves to hold said levers firmly against-the Cams 1. The raising or lowering of the cap G is accomplished by the levers H, which tend to oscillate the cap-levers F on their shaft f. The shape and size of the cams I are such as to cause the cap G to remain stationary during the drawing and combing processes, and then, as the return motion commences, to slowly descend and depress the tail of the sliver until the tail has been moved forward to a position immediately under the head of the sliver, whereupon the capis suddenly raised clear of the approaching nippers, as shown in Fig. 2. The result is that thejuuction is better made,

that the fibers of the tail of the sliver are placed under the fibers of the head, and that there is no collision, points against points, of the fibers of the tail and head of the respective divided portions of the sliver.

In the case of the combing of long wool or other long fibers filaments are often met with which so much exceed the medium length that it becomes advantageous to cut them, and for this purpose I employ a suitable cuttingblade, L, (shown in Figs. 3 and 4.) This blade 0 is mounted on levers K K, pivoted at 70 70 to the comb-carrying frame M. In addition to the movement given to the levers by the combcarrying frame, they have a movement of oscillation about the pivots k is imparted to 5 them by a cam, N, on a shaft, O,which is journaled in the frame of the machine. The blade L, toward the end of the period of drawing, and while the drawing-nipper is closed, and

at the moment when the fixed nipper is shut, 1C0

presents itself before the comb and impinges against the sliver, so that as the drawing-nipper continues its course a little farther the fibers are stretched beyond their limit of elasticity, and consequently break at the point of contact of the knife. The levers K K may be held against the cam N by their own weight or by a spring or any suitable means, and the curvature of the cam is such as to cause the knife L, during its descending movement, to avoid the head of the sliver and the returning drawing-nipper.

In the previous application referred to I described the use of a stripper-blade in front of the drawing-nipper, for the purpose of preventing the fibers from clinging to the upper jaw of the drawing-nipper upon the opening of the same. I now prefer to place that blade on the other side of or behind the nipper, so as to economize the space between the two nippers.

Figs. 5, 6, and 7 show three different positions of the improved stripper-blade T, for preventing the fibers from adhering to the upper jaw of the nipper. If it should be desired to lift this blade up against the nipper at the moment that the drawing-nipper presents itself before the head of the sliver, in order to utilize the whole opening between the jaws of said nipper, a special agency is provided for that purpose. This agency may be the cap G, which, byimpinging against the under side of a projection, t, from the stripper-blade T, lifts the blade suddenly at the proper time until it rests against the under side of the upper drawing-nipper.

For the purpose of assisting the return motion of the drawing-nipper frame, one or more bufler-springs,U, of any suitable construction, may be employed, thus easing the motion of the said frame in case of long strokes.

I am aware that a device has been employed for depressing or lifting the head of a sliver against either the upper or lower roll of a combing-machine. I am also aware that it is old to employ a knife for severing the fibers in connection with nippers. Such devices I do not claim broadly.

Having thus described myinvention, the following is whatI claim as new therein and desire to secure by Letters Patent:

1. In a combing-machine, the combination of nippers O G, levers F, cap G, levers. H, having arms j, suitable springs J, and cams I, as and for the purpose set forth.

2. In a combing-machine, the combination of the nippers E E, the knife L, levers K K k 70 and cam N, as and for the purpose set forth.

3. In a combingmachine, the combination of the nippers O O and stripper-blade T, located on the delivery side of said nippers, as set forth.

4. In a combing-machine, the combination of the cap G and stripper-blade '1, having projection t, said cap being adapted to impinge against the projection, as and for the purpose set forth.

5. In acombing-machine, the spring-cushion U, in combination with the drawing-nipper frame, as and for the purpose set forth.

Witnesses Gris. HUsER, G. MULLER. 

